Home / 1,278,619.44-1,918,261.32-1,051,289.76

Finding the Fourth Proportional to 1,278,619.44, 1,918,261.32 and 1,051,289.76

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Solution

The fourth proportional to 1,278,619.44, 1,918,261.32 and 1,051,289.76 is: 1,577,207.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,619.44 : 1,918,261.32 = 1,051,289.76 : x
  2. Step 2: Convert to fraction form
    1,278,619.44/1,918,261.32 = 1,051,289.76/x
  3. Step 3: Cross multiply
    1,278,619.44x = 1,918,261.32 × 1,051,289.76
  4. Step 4: Simplify right side
    1,278,619.44x = 2,016,648,482,720.08
  5. Step 5: Solve for x
    x = 2,016,648,482,720.08/1,278,619.44
  6. Step 6: Final answer
    x = 1,577,207.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.